usb/121232: remove PCCARD rebooted system

[linimon at FreeBSD.org]

Synopsis: remove PCCARD rebooted system

Responsible-Changed-From-To: freebsd-i386->freebsd-usb
Responsible-Changed-By: linimon
Responsible-Changed-When: Sat Mar 1 01:37:47 UTC 2008
Responsible-Changed-Why: 
This is a pccard manifestation of the well-known problem with removable
media being removed.

http://www.freebsd.org/cgi/query-pr.cgi?pr=121232